The Growl Project has released Growl 2.0, a major update for the system-wide notification utility that brings compatibility with Notification Center in OS X 10.8 Mountain Lion. With this new release, you can set Growl to route all of its notifications through Notification Center (rather than use Growl’s standalone pop-up notifications). However, you’ll still find some apps (including Dropbox) using Growl’s notification system instead of forwarding to Notification Center due to the requirement that developers update their apps to the Growl 2.0 API. The update also adds support for Prowl and Boxcar, two utilities that enable you to receive notifications from your Mac on your iOS device. It also reportedly resolves the high CPU spikes and multiple crashes suffered by the previous version. ($3.99 new from the Mac App Store, free upgrade from previous Mac App Store versions, 6.1 MB)
File Email with a Key in Apple Mail
In Mac OS X 10.4 Tiger or later, you can use the simple and fun MsgFiler Mail plug-in to file Mail messages using keyboard shortcuts.
New in Apple Mail 4 (the 10.6 Snow Leopard version), to assign a keyboard shortcut to any mailbox on the Move To or Copy To submenu, you can also open the Keyboard pane of System Preferences, click Keyboard Shortcuts, and select Application Shortcuts in the list on the left. Click the + button, choose Mail from the Application pop-up menu, type the name of the mailbox in the Menu Title field, click in the Keyboard Shortcut field, and press the keystroke combination you want to use. Then click Add.